Classic Keuffel & Esser Log Duplex DeciTrig slide rule. The latest patent dates from 1940, and Mr. Lundin was already a graduate student in Chicago by 1950, so the timeline for dating this is pret

 

HOPPY Split Image Transit - Model 62 Made in USA: Hopkins MFG. Corp, Kansas. mid-century engineering equipment rarely used. Mirrors need cleaning. Condition: cosmetic: very good. Includes Instruction

 

FOR AUCTION A VINTAGE GS POCKET VOLT METER . OUTER CABLE FRAYED BUT BOTH INNER ONES STILL INTACT . THE CASE SHOWS SIGNS OF USE AND AGE . NOT BEEN TESTED BUT I SEE NO REASON WHY IT SHOULD NOT WORK. DIA

 

******Seller Policy***** I try to find unique items, most of them are vintage and getting harder to find. My shipping policy is this, when i receive payment I ship item, if buyer pays in the evening E

 

"VIBRATION MOTOR". Use this "Vibration Motor" on your Dry Washer, High Banker, Mini Power Sluice, Gold Wheel or ??? to help move the raw material and further classify the concentrates. To all of my fe

 

LUFKIN 100 LINK STEEL SURVEYING TAPE WITH PINS. Marked THE LUFKIN RULE CO., SAGINAW, MICH., MADE IN U.S.A. As near as I can tell this tape is in good working order. Wood handle has most of the origina

 

A handmade vintage human eye prosthetic Condition: was very good but now it's broken. Look at the pictures to see exactly where and how much. Consider the fact that it was made in 1940-1945 aprox. Siz

 

up for auction is: A Graybar General Catalog No. 105 published in 1958. This Graybar catalog covers "Everything Electrical". This book is clean - no writing detected - one stray pen mark on first page

 

4-1/4" tall, 2-1/16" diameter old clear glass chemical/laboratory bottle having raised frosted letters on front - Ammonium Chloride NH4 Cl Embossed on bottom - W. T. Co. K U.S.A. Has a glass stopper,

 

Mining Districts and Mineral Resources of Nevada Paperback book by Francis Church Lincoln. Published in 1982. It is a photographic reproduction of the 1923 first edition. It is in great condition, all